Isis Bottom Bracket (68×113)

Description

The Isis Bottom Bracket (68×113) is a precision-fit schwinn ic pro20 parts replacement designed to restore smooth crank performance on compatible indoor cycles. Built for the Schwinn IC Pro20 platform, this cartridge-style bottom bracket supports the crank spindle and helps eliminate rough pedaling, play, and bearing noise.

• Fits Schwinn IC Pro20 indoor cycling bikes using an ISIS-drive crank system.
• 68 mm shell width x 113 mm spindle length configuration for proper chainline and crank alignment.
• Commonly referenced as a direct ic pro20 parts isis bottom bracket replacement for bikes using OEM part numbers 84990 or 003-1508.
• Also listed for related Schwinn indoor cycle families including IC Pro, IC Elite, and select AC series models that share the same 68x113L ISIS specification.

This schwinn isis bottom bracket uses the widely recognized ISIS interface and a 68×113 size to match original drivetrain geometry on compatible bikes. As a sealed cartridge assembly, it is designed for dependable rotation and reduced maintenance compared with loose-bearing setups. Depending on supply, this part may be OEM or a high-quality aftermarket equivalent built to meet the same fitment standard. Installation is generally moderate in difficulty and typically requires crank removal tools plus the correct bottom bracket tool for threaded cups. Always confirm your existing shell width, spindle length, and part number before ordering.

Count on an OEM-quality replacement with dependable fit, smooth operation, and fast shipping from our warehouse.